IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => Subject Doubts => GCE AS & A2 Level => Math => Topic started by: thecandydoll on May 11, 2010, 01:54:11 pm

Title: P1,sums
Post by: thecandydoll on May 11, 2010, 01:54:11 pm
I am from CIE,any one following cie text book?
i have a doubt in practice exam 2 pg,287,
Q.no b ii


y=x^3-3x^2+12x

Find dy/dx
hence by completing square or totherwise prove gradient of curve is never less than 0

THANK YOU U!!